baber/WOPTO huggingface dataset:
Patent GB-560462-A (GB)
Title: Improvements in or relating to apparatus for training air pilots
IPC: G09B9/12
Filed: 1942-09-03
Abstract: 560,462. Training- aircraft pilots. WINSTANLEY, H. M. Sept. 3, 1942, No. 12448. [Class 4] A device for training aircraft pilots comprises a dummy fuselage A pivoted on an axis B<1> in a frame B tiltable about a transverse axis C<1> under control of a lever D. A lever E, corresponding to a throttle lever, controls a motor F which drivesa revolution counter F and a fan F<2> for simulating the slip stream. This lever E also controls motors G<1>, H<1> respectively driving a dummy air-speed indicator G and an altimeter H. All three motors are controlled in addition by resistances K<1>, K<2>, K<3> varied by movements of the frame B about the axis C<1> so that changes of apparent engine speed, air speed and altitude are induced by such movements. At zero altitude as indicated on the dummy instrument H a switch is actuated by a cam H<2>, Fig. 2, to open one circuit to the motor H<1> and to light a warning lamp H<3>. Simultaneously a solenoid, not shown, is energized to open the circuit to one side of the resistance K<1> so that the altimeter can only move to indicate an ascent. A governor F<3> driven by the motor F<1> closes a switch F4 when a certain minimum speed is exceeded at starting to direct current to the motors G<1>, H<1> and to the motors for tilting the frame B.
Patent GB-968622-A (GB)
Title: Improvements in or relating to change speed gearing
Inventor: CARNALL HAROLD JOHN
IPC: F16H3/02
Filed: 1962-03-31
Abstract: 968,622. Change-speed gear. FRANK BONSER & CO. Ltd. May 21, 1963 [May 31, 1962], No. 12486/62. Heading F2D. A change-speed gear, particularly for use with agricultural machines, comprises a central spur pinion 1 on a transmission shaft 11 and engageable by one of a series of pinions 4, 5, 6 carried by a casing 3, 8 rotatable about an eccentric axis 23. The halves 3, 8 of the casing are secured together by bolts 19 in resilient bushes 21 and each pinion is provided with bosses rotating in needle bearings 18 mounted in bores in the casing. Each pinion is also splined internally for the engagement of a detachable splined shaft 10, which is inserted in the bore of the effective pinion.
Patent GB-325747-A (GB)
Title: Impulse starters for magnetos
IPC: F02P1/00
Filed: 1929-04-22
Abstract: 325,747. Wheatley, D. Y. April 22, 1929. Magnetos, driving.- In a magneto impulse starter with a pawl for momentarily restraining the armature to enable the impulse - giving means to be loaded, the trip catch is controlled by fluid pressure. In the form shown, wherein the magneto attached to the part 8 is driven by the part 7, the pawl 6 is held out of action whilst the engine is running by the catch 5 controlled by a piston 3 in the cylinder 1 connected to the induction pipe and controlled by the partial vacuum. Upon the engine stopping, the piston sinks and the catch is tilted, as shown in Fig. 1, and the end of the pawl is thus allowed to drop into the adjacent one of two recesses 10 in the part 8 as shown in Fig. 2. When the engine is turned for restarting, piston 3 is raised by suction to reset the catch, and the part 8 is restrained until one of the projections 11 on the driving part 7 lifts the pawl, whereupon the required impulse is given to the part 8 and the pawl is thrown out and held by the catch 5. Alternatively the piston may be stationary, the cylinder being movable and connected to the catch 5. In place of using suction, the piston may be operated by pressure, for example from the oil system of the engine.
Patent GB-1098816-A (GB)
Title: Improvements in or relating to rotary washer barrels
Inventor: KENNEDY ROBERT
IPC: B03B5/56
Filed: 1964-03-25
Abstract: 1,098,816. Sink-float apparatus. NORTONHARTY ENGINEERING CO. Ltd. March 25, 1965 [March 25, 1964], No. 12539/64. Heading B2H. A rotary washer barrel in which separation of coal or other mineral is effected by use of a dense medium comprises two vertical stationary partitions 14 which are spaced apart and extend from end to end of the barrel and, fixed upon the internal surface of the barrel, one or more spiral scrolls which are arranged to encircle the partitions and move sinks into one or more annular channels 4 provided with scoops 7 for lifting the sinks into a stationary discharge shoot 16. The barrel is rotated through gear rings 10, 11 and preferably the partitions 14 are fixed to the sides of a supply hopper 13. The floats are confined between the partitions and are discharged by the medium over a lip 3 into a discharge shoot 15. The sinks pass below the partitions and are conveyed by the scroll 9 to the scoops which drain off the liquid and deposit the sinks into the shoot 16. In a modification, Fig. 3 (not shown), the annular channel (4) is disposed mid-way between the ends of the barrel, one scroll being provided on each side of the channel. In another modification. Fig. 4 (not shown), two annular channels (4a) and (4b) are provided one at each end of the barrel, the arrangement being such that the material which sinks rapidly is collected by the scoops in the first annular channel (4a) for discharge into a shoot (16a) extending through the first end of the barrel and the material (middlings) which sinks less rapidly is moved by a scroll (9c) to the channel (4b) at the opposite end of the barrel for discharge into a shoot (16b) which directs the middlings out of the barrel and if desired, to one or more further separating processes.
Patent GB-1239966-A (GB)
Title: Improvements in the storage and display of punched cards
Inventor: UNDERWOOD ROBERT
IPC: B42F17/08
Filed: 1968-03-14
Abstract: 1,239,966. Filing papers. KEENWOOD (COLNBROOK) Ltd. 14 Feb., 1969 [14 March, 1968], No. 12551/68. Heading B6E. [Also in Division A4] A rack for storage and display of punched cards comprises a pair of vertical supports 8 formed with slots 11 which receive tabs 13 of partition plates 12. The tabs of the uppermost and lowermost partitions are crimped as shown. A casing 1 having a back wall 2 and side flanges (3), Fig. 1 (not shown), and including front retaining walls 4, is slid over the assembly of supports 8 and partitions 12, and may be riveted in place. Four racks may be mounted projecting radially outwardly on a turntable.
Patent GB-560953-A (GB)
Title: Improvements in seed cleaners
IPC: B07B13/00
Filed: 1942-09-07
Abstract: 560,953. Separating seeds &c. EDDY, E. D., and CAMPBELL, A. W. Sept. 7, 1942, No. 12614. [Class 117] Seeds of clover, alfalfa, flax, cereals and the like are separated from weed seeds and other foreign matter in passing through an inclined chamber formed between a rapidly-rotating friction-surfaced cylinder 5 and a stationary cylindrical shield 22, the rough-surfaced weed seeds &c. being projected upwardly in the chamber further than the smooth-coated seeds by repeated contact with the cylinder and finally passing over the top of the cylinder to a discharge shoot 37. The bottom of the chamber is closed by a roller 16 rotated through reduction gearing from the cylinder shaft 4 or by an adjustable plate 23. The shields 22, Fig. 6, may be adjusted to vary the width of the chamber by a sliding bar 30 operated by a crank disc 31 and connected by links 29 to stiffening brackets 28 on the shields. The roller 16 is cleaned by the flange 25<1> of the shield and kept smooth by a felt pad 25. Alternatively, the shield 22, Fig. 4, is carried by slidable bars 34 operated by pinions 35. The supporting frame 1 may be adjusted about the pivot 2 by racks and pinions 12, 13. The cylinder 5 is preferably covered with velvet or other pile fabric 51, Fig. 8, reinforced by a helically wound wire 5<2> buried in the pile. The upper end of the cylinder may be provided with a surface of finer or harder texture. -The inner surface of the shield may be coated with emery cloth, rubber or other friction material.
Patent GB-694421-A (GB)
Title: Processes of multicolour photographic reproduction
Filed: 1948-05-07
Abstract: 694,421. Colour photography. BALL, J. A. May 7, 1948, No. 12641/48. Drawings to Specification. Class 98 (ii). In the production of four colour separation negatives four light-sensitive photographic layers are exposed through light filters which will produce predominant exposure in the ranges 445 to 455, 605 to 630, 490 to 535, and 545 to 575 millimicrons respectively, the first three light filters having a transmission band width not greater than 60 millimicrons at onehalf the transmission and the fourth light filter having a transmission band width not greater than 70 millimicrons at one half the transmission. An example stated to provide instructions for carrying out the method describes exposure of three gelatin silver iodobromide emulsion layers sensitized with a panchromatic sensitizing dye such as 2-pdiethylaminostyryl-benzothiazole ethiodide or benzoselenazole ethiodide to a multicolour scene or object field respectively through (1) a filter for the " red response which cuts sharply at 590 millimicrons (e.g. Wratten, No. 25); (2) a filter for the " green response " which cuts out at 490 and 570 millimicrons (e.g. Wratten, No. 61, plus Wratten, No. 43), and (3) a filter for the " blue response " which transmits from 400 and 500 millimicrons only (e.g. Wratten, No. 47); and exposure of a fourth gelatin silver iodobromide emulsion layer containing an orthochromatic sensitizing dye such as 61 - diethylamino - 11,3 - diethylthia- 2<SP>1</SP>-cyanine iodide or N,N<SP>1</SP>-diethylaminothiapseudo-cyanine ethiodide to the same multicolour scene through a filter " for the spectral yellow or chlor-response " (e.g. Wratten, No. 16) (the word " Wratten " is a Registered Trade Mark), and the four layers are developed in a metol-hydroquinone negative type developer, fixed, washed and dried. The four negatives may be converted to positives as by colour toning or colour development to give positives with predominant absorption in the ranges 450 millimicrons and shorter, 600 and longer, 485 to 545, and 545 to 600, and the positives superimposed in register; or positives printed from the negatives may be converted to relief positives, and dye images therefrom of similar absorption ranges transferred to a gelatin blank by imbibition; or positive printing plates made from the negatives may be used for ink printing with inks as of these absorption ranges. Colour formers, dyes and pigments for the various operations are quoted. Specifications 440,032, 440,089, 447,092, 627,353, 635,294 and 661,477 are referred to.
Patent GB-168633-A (GB)
Title: Shuttle driving mechanism for sewing machines
IPC: D05B57/38
Filed: 1920-05-07
Abstract: 168,633. Singer Manufacturing Co., Ltd., Corrall, H., and Stevens, B. A. May 7, 1920. Sewing-machines; lock-stitching by shuttles.- A shuttle is wholly supported upon an oscillating horizontal disc 19 driven through pin pinions 25 from a reciprocating rack 24, and according to the invention, the stock 29 and the moving parts supported in it constitute a self-contained fitting- which may be secured in place in the sewing- machine by screws 28 and requires no adjustment after installation.
Patent GB-464372-A (GB)
Title: Improvements in or relating to respiratory apparatus for protection against noxious gases
IPC: A62B19/00
Filed: 1936-05-05
Abstract: 464,372. Respiratory apparatus. GUILLEMIN, J. L. May 5, 1936, Nos. 12721 and 12722. Convention dates, May 28, 1935 and March 24, 1936. [Class 81 (ii)] In closed respiratory apparatus wherein a single air-flow path is provided, between the face-piece and the breathing bag via carbondioxide absorbent, for both inhaling and exhaling phases, the apparatus being valveless, the soda or potash absorbent is distributed in granular form on a support or supports 13 in a cartridge 5 removably housed in a container 1 supporting the breathing bag 2 and an oxygen cylinder 4. The cartridge may be tubular and may be connected by a screw ring on the container with a breathing pipe such as 7 into which the oxygen supply opens, the soda or potash being sprinkled on fabric or cotton wool packed loosely in the cartridge. As shown, the absorbent is carried within supports comprising gauze strips 15 folded longitudinally and held in side frames 13 with spacing members 14 ; the supports are superposed in a rectangular cartridge 5 housed within a casing 17 carrying the breathing pipe 7 and extending into the container 1. The cartridge 5 has apertures at 10 and 8a, spacing members 9, a flange 6 abutting, through packing 19, against the container wall, and is held by a screw 21 in a stirrup 22 acting through a deformable cover plate 18 on casing 17 which bears upon a removable cover 11 for the cartridge. Oxygen is delivered to the cartridge through a pipe 8. The Specification as open to inspection under Sect. 91 refers to the absorbent layers as arranged spirally or pleated like an accordion. This subject-matter does not appear in the Specification as accepted.
Patent GB-1382227-A (GB)
Title: Spring loaded hinge
IPC: E05F1/12
Filed: 1973-03-16
Abstract: 1382227 Spring hinges DORMA-BAUBESCHLAG GmbH & Co KG 16 March 1973 [17 March 1972] 12721/73 Heading E2F  A spring-loaded hinge comprises two hinge elements, i.e. a flap 13 with sleeves 14, 15 and a flap 17 with sleeve 18, which are linked by a tubular hinge pin 20; a leaf spring 33 projecting from a slot 32 in the pin to engage a portion 19 of the sleeve 18; a torsion spring 28 attached at one of its ends to the hinge pin by member 31, and acting at its other end on a plug 22 which is engaged by an inturned end 21 of the pin for rotation with respect to the pin; an arcuate groove 23 in the plug which is engaged by a projection on the hinge pin to limit the rotary movement of the plug; and a recess 34 formed in the sleeve 14 for engagement by a dog or projection 35 on the plug. The recess 34 is formed to cause on insertion of the hinge pin into the sleeves, firstly the hinge pin's rotation into a position to become locked by leaf spring 33, to the sleeve 18 and then the plug's rotation with respect to the hinge pin so that the end of the groove 23 moves slightly away from its associated projection on the hinge pin. This causes an initial pre-tensioning of the spring 28.  As shown in Fig. 3 the end 39 of the projection 35 cooperates with an entry portion 38 of the recess 34 and insertion of the hinge pin causes surface 40 to slide along surface 36 to cause angular as well as longitudinal movement of the pin. When insertion of the pin is complete the interengaging shapes of the projection and recess prevent any further axial movement. In another embodiment (Fig. 4, not shown) a stud (43) of circular cross section projects from the plug 22 and, when the pin is fully inserted, seats ina depression (47) in one side of the recess to prevent axial movement. The spring 28 may be pretensioned in the pin but in the embodiment shown in Fig. 1 an intermediate plug 26 links the spring with the end plug 22 and a cooperating arrangement of ratchet teeth 29 is provided between these plugs. A tool may be inserted through bore 24 to engage a recess 25 to tension the spring by rotation of the plug 26. Specification 1375803 is referred to.
Patent GB-731680-A (GB)
Title: Improvements in or relating to devices for automatic level regulation in multi-channel carrier frequency line transmission systems
IPC: H04B3/12
Filed: 1952-05-21
Abstract: 731,680. Automatic volume control. TELEFONAKTIEBOLAGET L. M. ERICSSON. May 21, 1952 [May 21, 1951], No. 12774/52. Class 40 (4). In a pilot-controlled gain-regulating system for a multi-channel carrier transmission system, attenuating networks responsive to the pilot current or currents and containing a thermistor element in both the series and shunt paths are provided in the negative feed-back paths of repeaters and/or in series between amplifier stages. The two-way repeater, Fig. 1, comprises directional filters RF1, RF2, and main amplifiers LF1, LF2, from the output side of which pilot currents are applied to pilot receivers SML, SMP, for control of series attenuator networks NRP1 and NRP2 and gain regulating amplifiers NRL1, NRL2, to compensate both for flat changes of level and for variation in changes of level with frequency. In the detailed arrangement of the gainregulating devices NRP, NRL, Fig. 2, signals incoming at terminals 1, 2 are applied to series attenuator network PRA, through a cathode follower stage V1 and then to a two-stage negative-feedback amplifier V2, V3, which includes in its feedback path a fine adjusting device FLN and a thermistor network LRA. The heaters of thermistors TP1, TP2 and TL1, TL2 are fed from the pilot receivers SMP and SML respectively which each produce two outputs, the sum of which is substantially constant.' The output characteristics of the pilot receivers are shown in Fig. 4 and the working point for average conditions is at Un, the point of intersection of the two outputs. Disappearance of the pilot current is catered for by resistors shunting the thermistors. The resistors are adjustable and are preset to give a gain suitable for average conditions. A modified arrangement in which the heaters of the thermistors in both the gain regulating devices are fed from a single pilot receiver and which is suitable for a system in which the slope variation is stably related to changes of flat gain, is described with reference to Fig. 3 (not shown). Specification 700,283 is referred to.
Patent GB-1263464-A (GB)
Title: Improvements relating to the trenchless laying of underground pipes
Inventor: EDE AINSLEY NEVILLE
IPC: E02F5/10
Filed: 1968-03-15
Abstract: 1,263,464. Mole plough. HUDSWELL YATES DEVELOPMENTS Ltd. 14 March, 1969 [15 March, 1968], No, 12783/68. Heading A1B. [Also in Division F2]  A liquid composition is injected into a tunnel formed by a mole plough 10 so as to lubricate and form a bedding layer for a pipe length 24 which is forced into the tunnel behind the plough. The liquid may be an aqueous thixotropic gel of Bentonite in water, or may comprise soil or cement in water with or without Bentonite. In one method, Fig. 6, the pipe length is releasably connected at 60 to a frusto-conical tunnel expander 15 which is towed behind the mole plough, the liquid being pumped into the annular space between the pipe and the tunnel 33. A foam rubber plug 29 prevents liquid from entering the pipe. In a second method, Fig. 8, the mole plough makes its complete traverse after which the tunnel is filled with a predetermined amount of liquid 32. An apertured tunnel expander 83, releasably connected to the pipe length at 90 is then drawn through the tunnel by a winch cable 88. The tunnel expander may be in two parts, connected by a bayonet joint, the rear part being replaceable for use with different diameter pipes. The front part is connected to the mole by a universal link. A modified expander, Fig. 7 (not shown) has a toothed peripheral drum (70) powered for rotation and mounted behind a nozzle (71) for mixing the liquid into the tunnel walls. The liquid is pumped from a surface reservoir, mounted on a trolley or on the mole plough itself, a portion of the slurry being recycled into the reservoir through a pressure control valve.
Patent GB-253502-A (GB)
Title: Improvements in or relating to the manufacture of wool felts
IPC: D04H1/10
Filed: 1926-05-19
Abstract: 253,502. Brecht, E., and Fugmann, R., (trading as Brecht & Fugmann). June 9, 1925, [Convention date]. Felt.-In making woollen felt for hats &c. by the blowing action of air currents, the raw material used consists of the tops or the so-called slivers obtained from washed wool, i.e. the shorter portions of the tops which fall off in combed yarn spinning mills. The. taps or slivers may be cut into lengths equal to that of hare or rabbit hairs.
Patent GB-912973-A (GB)
Title: Phenthiazine derivatives
IPC: C07D279/28
Filed: 1960-04-11
Abstract: The invention comprises compounds of the general formula: <FORM:0912973/IV (b)/1> and their acid addition salts, wherein R represents an alkoxy-phenyl group or a diphenyl methyl group, and the preparation thereof by reacting N - (b -hydroxyethyl) -N1-[g -31-chloro-101-phenthiazinyl) propyl]-piperazine or a reactive derivative thereof with an acid R.COOH or with a functional derivative thereof.  Reference has been directed by the Comptroller to Specification 833,473.
Patent GB-594606-A (GB)
Title: Safety control systems and apparatus for fuel burners
IPC: F23N5/20
Filed: 1945-05-23
Abstract: 594,606. Safety controls for gas burners. MAY, P. (Robertshaw Thermostat Co.). May 23, 1945, No. 12873. [Classes 75 (i) and 75 (iii)] [Also in Group XXIX] A safety control system for burners comprises a main circuit having electricallyoperable means, 40, 42, movable between positions for controlling the fuel supply, and a subsidiary circuit having a control device 34 for the operable means and a fixed resistor 16, the control device and the resistor being in parallel but each being in series with a flameresponsive element 56 exposed to the flame of the burner and adapted to cause variations in the current in the subsidiary circuit according to the presence or absence of a flame. In operation, the main valve 14 is first opened so that fuel may be supplied to a pilot burner 18 and current supplied to operate a relay 34, which closes contacts 52, 54 and 48, 50, and completes a circuit through a wire 106, igniter 22, contacts 66, 64 and contacts 50, 48 so that the pilot burner 18 is ignited. A coil 94, which is in series with the ballast resistor 56 and the relay 34 heats a bimetallic strip 76 and closes contacts 78, 80 completing a circuit through these contacts, resistor 82 and contacts 54, 52 to short-circuit the fuel valve 16 which remains closed. When the pilot burner 18 has heated the ballast resistor sufficiently, its increased resistance reduces the current through the relay 34 and the armatures 40, 42 are released to open contacts 54, 52 and 50, 48 and close contacts 44, 46, to remove the short circuit across the valve 16 so that the valve is opened to allow fuel to pass to the main burner 10, the closed contacts 44, 46 allowing current to pass through a signal light 70 to show this has been done, and the opening of contacts 48, 50 disconnecting the igniter 22. If the main burner and pilot burner flames are extinguished, the ballast resistor 56 cools until there is sufficient current in the relay 34 to close contacts 52, 54 and 50, 48 to shortcircuit the coil 124 of a bimetallic strip 62 and the valve 16 to shut-off the fuel to the main burner. When the strip 62 has cooled sufficiently, the contacts 64, 66 will close to complete a circuit through the igniter 22, but the time it takes for the strip 62 to cool is arranged to be longer than the time required for the unburned main burner gas to escape. A cut-out 34 may be provided to operate .if there is an increase in current due to a break in the relay circuit,